Home / 171,320.10-257,016.60-53,003.40

Finding the Fourth Proportional to 171,320.10, 257,016.60 and 53,003.40

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Solution

The fourth proportional to 171,320.10, 257,016.60 and 53,003.40 is: 79,516.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,320.10 : 257,016.60 = 53,003.40 : x
  2. Step 2: Convert to fraction form
    171,320.10/257,016.60 = 53,003.40/x
  3. Step 3: Cross multiply
    171,320.10x = 257,016.60 × 53,003.40
  4. Step 4: Simplify right side
    171,320.10x = 13,622,753,656.44
  5. Step 5: Solve for x
    x = 13,622,753,656.44/171,320.10
  6. Step 6: Final answer
    x = 79,516.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.